SU14652A1 - Smoke box for steam boilers - Google Patents

Description

In order to increase heat transfer in steam BOTiiax 13a, 30, it is proposed to use a fire-fighting element whose channels are formed between the longitudinal projections on the inner surface of the strip, bend in the longitudinal direction in half and welded along the free butt-edge. The channels can be made with a round, square, lenticular, rhombic or hexagonal cross section, and the outer surfaces can be wavy or with longitudinal ribs.

In FIG. 1 depicts a flute section of a steam boiler, - equipped with the proposed fire-fighting element; FIG. 2-slit section of the element with square channels; FIG. 3 is a longitudinal section of it; Fig .. 4 and 5-transverse and longitudinal section of the element with round channels; FIG. 6-13 non-cross-sectional sections of the elements with channels of various sections.

The smoke elementaite is made of a strip provided with sa internal inner longitudinal projections 2, which, after bending the strip in longitudinal direction in half and welding it to its free butt edge 5, form the fire channels 1 of square (Fig. 2, 3 and 11) or round (Fig. 4, 5) section. The outer surfaces of the strips can be made wavy (Fig. 6), or provided with longitudinal outer ribs 4

(Fig. 7 and 10). Prior to folding, the strips can be stamped to obtain square (Fig. 8), chechet-vice (Fig. 9), rhombic (Fig. 12) or hexagonal (Fig. 13) section channels.

The location of the smoke elements in the boiler is shown in FIG. 1. I enter, and through the nozzle 7 of the housing 9 of the boiler the liquid flows around the fire-fighting elements about, and perceiving from the latter the heat passing through the channels 1 of the gases, turns into steam, removes yush through the nozzle 8. The elements 5 should be located so so that their plane of symmetry is vertical, in order to avoid their vapor bubbles on the outer surface. If it is necessary to horizontalize the elements, elements with a flat and smooth surface (Fig. 2 and 4) or with a surface provided with cross-section fins (Fig. 11) are used, not prevented, by the free circulation of liquid and steam, and production of reinforced Blowing.

Thing

of the patent. 1. Smoke box

an element for steam boilers, characterized in that its smoke-firing channels 1 are formed between the longitudinal projections 3 on the inner surface of the strip bent in the longitudinal direction in half, and the welded but free butt edge, with

Karaly can be square (Fig. 2, 3 and 11) cross section or round section (Fig. 4, 5), and the outer surfaces of the strips can be made wavy (Fig. 6) or with corresponding external longitudinal ribs (Fig. 7 and 10 ).

2, Modifying the elements described in and. 1, characterized in that the internal channels and external irregularities are formed by chamfering the preliminary stamping of sheets in order to form channels of square cross section (Fig. 8) lenticular (Fig. 9), rhombic (Fig. 12) and hexagonal (Fig. 13).

f:

Hypt-DlsZtsat C g)

FIG. 2